Ventilator.



C. SAUNDERS.

VENTILATOR.

APPLICATION FILED NOV. 3,1913.

Patented Feb. 2, 1915.

ITNESSE INVENTOR 6&42/68 Yaandenr BY WATTORNEY THE NORRIS PETERS co,PHoTo-LlTHQ. WASHINGTON. D C

CHARLES SAUNDERS, 0F SAGINAW, MICHIGAN.

VENTILATOR.

Specification of Letters Patent.

Patented Feb. 2, 1915.

Application filed November 3, 1913. Serial No. 798,924.

I '0 all whom it may concern:

Be it known that I, CHARLES SAUNDERS, a citizen of the United States,residing at Saginaw, 'in the county of Saginaw and State of Michigan,have invented certain new and useful Improvements in Ventilators; and Ido hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same.

My invention relates to ventilators and more particularly to ventilatorsadapted to be secured to the top and exterior of a win dow forventilating a room, hall or the like.

The object of my invention is to provide a device so constructed as toprevent any sudden cold drafts or sudden air currents in the window of aroom.

A further object of the invention is to provide a device constructed soas to prevent dust, rain, snow, flies and the like from entering theroom, no matter from which direction the wind may be blowing.

A still further object is to provide a ventilator that is simple andcomparatively inexpensive in construction, thoroughly eflieient andpractical for the purpose intended.

WVith the above and other objects in view, my invention consists incertain new and novel features of construction, arrangement andcombination of parts, and the equivalents thereof, as will behereinafter more fully described and finally pointed out in the appendedclaims.

Referring to the drawings forming a part of this specification whereinlike characters of reference denote similar parts throughout the severalviews:

Figure 1 is a view in perspective showing my improved ventilator inplace over a window. Fig. 2 is a vertical sectional view taken on line22 of Fig. 1. Fig. 3 is a longitudinal section of the hood taken on line3-3 of Fig. 1.

The present embodiment of my invention comprises a ventilator having ahorizontally disposed flue or air-passage, a vertically disposed flue orair-passage adjacent thereto and communicating therewith; andpreferably, although not necessarily, a screen wall or partitionseparating the horizontally disposed flue from the vertically disposedflue.

It will be clearly understood that while I have produced a ventilatorwhich will prevent sudden cold drafts entering the room, I have soarranged the ventilator as to permit a perfectly free up-draft throughthe ventilator, regardless of the direction of the wind, and one thatwill exclude all storms.

In the drawings, the reference numeral 1 designates a horizontal flue orair-passage and 2 is a suitable vertically disposed flue or air-passage.Flue 1 is adjacent to and communicates at one end with flue 2 and at itsopposite end with a room over the usual window-sash 3. Flue 1 is housedby means of the side walls 1 and the top and bottom walls 5 and 6respectively. The top wall 5 is preferably inclined as shown, to allowready drainage. Flue 2 is housed by means of the end walls, 6,preferably integral with the end walls 4, the front glass closure 7 andthe top glass closure 8. Preferably I use glass closures, but otherstyles of closures may be used if desired.

The end walls6 are adapted to extend upwardly a suitable distance abovethe top edge of the end walls 4, and are preferably inclined or beveledupwardly from the front closure 7, thus providing a rear air-outletpassage 9 for flue 2, which has its bottom open to permit of a freeupward circulation of air.

The end walls 4 and the top and bottom walls 5 and 6 respectively, areadapted to be suitably secured to the window frame 10, thus forming achannel or air space 11 be-. tween the wall of the building and the rearair-outlet opening 9.

. A suitable, preferably removable, screen wall or partition 12 isarranged at the end of flue 2 communicating with flue 1, to preventvermin, etc., from entering the room.

From an inspection of the drawings, it will be observed that the freshair is conveyed into the room from over the top of the window sash 3from the flues 1 and 2. Flue 1 communicates at one end with the interiorof the room over the window sash 3, as clearly shown in Fig. 2 and thefreshair is carried to the breathing plane and beyond, where it isgradually diffused over the entire area, while the foul, impure air isconveyed out through flue 1 into flue 2, which latter flue conveys itupwardlv and allows it to pass outwardly through the rear air-outlet 9.Down drafts are deflected by the inclined top closures, thus suddenplold drafts are stopped from entering either It will be noted that byraising or lowerseeii that I provide a simple, yet efficient means forthoroughly ventilating a room.

Having described my invention, what I claim and desire to secure byLetters Patent is:

p 1. A ventilator comprising a flue adapted to have communication with aroom, and a vertical flue having an air-inlet and airoutletcommunicating with said first-mentioned flue, the rear wall of saidvertical flue spaced apart from the wall of said room and provided withan air-outlet passage; a forwardly sloping top on said vertical flue,and a screen interposed between said flues.

2. The combination with a window-frame andsliding sash carried thereby,of a ventilating-hood secured to said window-frame comprising a screenflue adapted to communicate with a room over said sliding-sash, a secondflue having a vertical passage in communication with saidfirst-mentioned flue, said second-mentioned flue having its rear wallspaced apart from said window frame and having an inclined top and alower air-inlet passage and an upper rear air-outlet opening oppositesaid windowframe.

In testimony whereof, I aflix my signature in presence of two witnessesCHARLES SAUNDERS Witnesses FREDK. J. LARSON, RoY WALLIS.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, D. C.

